Damn that thread has me scared...
I think I'm safe in regards to the cats, I have the rear cats deleted and occasionally it comes on, mostly randomly.
Originally Posted by menendez1293
Do you know if you are running on a dangerous side of rich? That is the most common cause for a bad cat. I'm not sure if having on cut out open could cause that but I wouldn't rule it either.
I'm on the stock tune, just intake, spacer, and a ported manifold.